Battery-wrapper.



c. F. a'unegss. BATTERY WflMPER. APPLICATION min nisens. 1911.

Patented Nov. 12, 1918.

2 SHEETS-SHE 1 M 'Q W c. F. sunse'ss.

BATTERY WRAPPER. APPLICATION HLED AUG-I5. 19H.

M 2 1 anotucus UNITED sTA'rEs PArENToFFmE.

CHARLES ILBURGEBS, OI mISON. wtsoozssnr, ASBIGNOB TO BURGESS BATTERY COMPANY, A CORPORATION OF WISOOKBIN.

Madison, in the county of Dane, State of 6 Wisconsin,=-have invented certain new and in the art to which it appertains to makf useful Improvements in Battery-Wrappers; and I do hereby declare the following to be a. full, clear, and exact description of the invention, such as will enable others skilled and 'use the same. V The present invention relates to battery wrappers; artioularly those adapted to hold the small ry cells whi eh are used in pocket flashlights, although the inventionis not limited to wrappers for batteries of small 'size, for the method of forming the wrappers may be used to produce battery wrappers of any desiredsizo,

It 'is an object of the invention to rovide a. simple method ofmanufacturing attery wrappers bysuccessive operations upon the materials of which the wrappers are formed, these ooerations comprising, in general, the folding of the sides of the wrapper into the proper form, the fastening of the meeting ed es of the wr t Jper and the attachment o the bottom. he invention also embraces the novel form of article produced by the method referred to-above.

Other objects and advantages oftheinmotion will up ear more clearly from an explunation'of tlie details of construction of the battery wrappers and a description of the several steps of the method by which they are fanned.- a a The method of the present invention may be practised conveniently upon a simple apparatus of the construction shown in Figares 1 and 2 of the accompanying drawings, to produce a pottery wrapper as =nown,

. partly in section, in Fig. 3. Figs. 4 to 12,

1 inclusive, show the "positions occupied by the apparatus'and'the materials of whici Ithefiwragpper is made, during successive steps g n thefforn atioirof this article. Offihe gye giewis Figs. 5 and 7 are sectional views along the lines 5-5 of Fig. 4 and 77 of Fi 6, respectively.

gfieferring tothe drawings and particularly tol ifis.

1 and 2. 20 represents a'base plate whic may be constructed of wood,

s ecimen of mam Patent.

Application filed August 15, 1917. Serial Jlo. 188,878.

metal or any other suitable material. This base late is provided with a central groove 21 o a shape and size corresponding to the shape and size of approximately one-half of the wrapper which is to be formed on the apparatus. A mandrel 22 is adapted to cooperate with the groove and this mandrel has the shape and dimensions of the interior of the wrapper which is to be formed thereon, except that it is a trifle shorter. The mandgel provided with an extension 23 pivoted to lugs 24tcxtending upwardly from a shelf 25 projecting from the end of the base plate 20. In order to place the sheet of material of which the wrapper is to be formed in the right position upon the base plate, the latter is provided with guides 26 at its sides and other guides 27 attached to its-ends.

In usingthe apparatus to form a battery wrapper the shelf 25 is placed toward the operator and the mandrel is turned into the position shown inFig. 1. A sheet of material 28 of the required size is then laid upon the base plate and the mandrel moved into the position shown iirFig. 2 where upon the paper will be drawn into a position, substantially like that shown in this figure. The 0 )erator then takes a strip of tape 29 which as been coated with'adhesive and moistened and places it upon tl'1et0p of the mandrel with one end 30 extending over the-free end of the mandrel as shown most clearly in Fig. 4. of the tape is exposed and to the end portion of the tape is attached an oval bottom 31 which may be of cardboard or arny other desired material. Since the mandit el is of slightly less length than the wrapper formed thereon. the material will project over the free end of the mandrel forming afi'ecess of depth just suliieient to receive the bottom. The operator next folds down the edges of the $1 eet 2-8 and presses them against the xrnnnned surface of the strip as shown in ig. 6 and in cross section in Fig'. 7, the sheet of material being ofsnch a size'that its edu'es meet at 32 without any overlapping. The tape 29 is next turned over the forward edge of'the wrapper and attached toiits (mil-r Patented Nov. 12, 1918.

The gunnned side sprface as shown in Fig. 8 to assiststi'llfur f t er in holding the edges of the -sheet"togather. The neirt step in the operation consists in swinging the mandrel into an upright position as shown in Fig. 9 and carrymg the tape across the bottom of the wrap er. .The mandrel is then dropped into the position shown in Fig. 10 and the tape carried along the outside of the sheet. T e tape should prefertably be out to such a length that when t e ast operation is finished a short length of -ta will project beyond the open end of t c wrapper as shown in Fig. 10. The wrapper is then removed from the mandrel asshown in Fig. 11 and'the free end of the strip is folded over the edge of the wrapper and attached to the inside "resented in longitudinal section in Fig.'12,.

The a paratus and method of using it,

as descri ed above possesses several advantages among whic may be mentioned the fact that it ermits the wrapper to be built up around 1; e bottom so that it cannot be smaller than the bottom. In the usual process of forming these wrappers the sides of the article are first wrapped and formed into shape-and'then the bottom is fitted into place. It frequently happens that the bot tour is thus put in at'an angle, a good joint cannot be obtained and the resulting article is. not of correct size to hold the batteries. The present construct'on has advantage that the'bottom is supported on both sides, that is, by the end of the tape which is attached to its inner face as well as the portion of the tape passing over the outer face of the bottom. In other types of construction-the bottom is held in place from one side only. Furthermore the edges of the sides of the wrapper are held together by a strip of tape on each side making. good butt joint instead of a lap joint, w ich not only strengthens the article b permitting the tape to ,be attached to hot the inside and the outside of the material, but also produces a wrapper which will be of uniform sha e without the ridge that would be cause if a lap joint were used. The ta e around the entire wrapper acts as a .rcin orcement, which effect is increased b V the fact that the ta e is turned over port one of the outer er which prevents tearingof the latter w en 'Qhece'lis are inserted. While the wrapper .xshowniinddescribed above has. been finished ei bgeturningthe free end of the tape within t wra per, this end may be left in the condition s own in Figs. 10 and 11 and after the cells, have been assembled in the wrap per this free and may be carried across the 80 top of the cells and attached to the opposite of the wra per thus forming a seal. for t e cells aswel. i electrical connectors which may be attached to the end of the battery.

as it will be understood that the battery orming the finished article rep the further with the end of thewrap gas of the wraplp as an'insulator for any herein disclosed and in my application, Serial No. 222,585 filed March 15, 1918, as a division of the present ap lication, claims are .made on the method 0 making battery wrappers above described.

0 mm: a

of which is held in p ace by the strip.

2. A! batter wrapper hayin adjacent lon itudinal e ges he d together oth inside an outside by an adhering strip and a bottom held in place by the strip. 3. A batter wrapper having abutting longitudinal e ges, a bottom set within one end of the wrapper, and a strip of adhering material holding the abutting edges together and carried over both sides of the bottom to hold it in place.

4. A battery wrapper having adjacent edges, a bottom set within one end of the wrapper and having its outer surface flush r, a-strip of adhesive material assmg a cup; the inside of the wra per an thence long the outside thereof or holding the edges together and being carried over the outside of the bottom and thence alon the outside of the wrapper on the other si e thereof.

A new article of manufacture comprismg an oval shaped wrapper the adjacent edges of which are held together by adhering tape and a bottom for the article held in place by the inner end of the ta e and also by a ortion thereof which is laid along the outsi e of the wrapper and across the outside of the bottonn- 6. A battery w ra percomprising a casin baring longitudlna edges reinforced both inside and outside with adhering tape, and a bottom held in place by ,the tapeon both the inner and outer faces of the. bottom.

7. A battery wrapper comprising a casing having longitudinal edges reinforced both inside and outside with adhering tape and a bottom held in place by the ta e on both the inner and outer faces of t e bottom, said tape being carried along the outside ofthdie casing on the side thereof opposite its e es.

In a battery wrapper, a strip of adhermg tape holding together the longitudinal edges of the wrapper and also adhering to both sides of the bottom of the wrapper to p net 15, 1917, claims are. made on novel eatures of the apparatus.

hold it in place at one ofid of the wrapper.

B0 1. A battery wrapper a longitudinal joint of which is reinforced both inside and outside with an .adherin strip and the bottom 5". A battery "PHPPPI" cmnpriqing a casing outside of tha casing opposite the longitu- (Hun! mlgros and having its and folded over 11w udgu ui" HM- wrupper and stuck dawn on tho illh illfi Hun-001; substzmi inHv as described.

In tvwtiumn v whereof :Jii; my signature.

CHARLES F. BURGESS. 

